1 //===- BreakpointPrinter.cpp - Breakpoint location printer ----------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief Breakpoint location printer.
13 //===----------------------------------------------------------------------===//
14 #include "BreakpointPrinter.h"
15 #include "llvm/ADT/StringSet.h"
16 #include "llvm/IR/DebugInfo.h"
17 #include "llvm/IR/Module.h"
18 #include "llvm/Pass.h"
19 #include "llvm/Support/raw_ostream.h"
25 struct BreakpointPrinter : public ModulePass {
28 DITypeIdentifierMap TypeIdentifierMap;
30 BreakpointPrinter(raw_ostream &out) : ModulePass(ID), Out(out) {}
32 void getContextName(const DIScope *Context, std::string &N) {
33 if (auto *NS = dyn_cast<DINamespace>(Context)) {
34 if (!NS->getName().empty()) {
35 getContextName(NS->getScope(), N);
36 N = N + NS->getName().str() + "::";
38 } else if (auto *TY = dyn_cast<DIType>(Context)) {
39 if (!TY->getName().empty()) {
40 getContextName(TY->getScope().resolve(TypeIdentifierMap), N);
41 N = N + TY->getName().str() + "::";
46 bool runOnModule(Module &M) override {
47 TypeIdentifierMap.clear();
48 NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu");
50 TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
52 StringSet<> Processed;
53 if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
54 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
56 auto *SP = cast_or_null<DISubprogram>(NMD->getOperand(i));
59 getContextName(SP->getScope().resolve(TypeIdentifierMap), Name);
60 Name = Name + SP->getDisplayName().str();
61 if (!Name.empty() && Processed.insert(Name).second) {
68 void getAnalysisUsage(AnalysisUsage &AU) const override {
73 char BreakpointPrinter::ID = 0;
76 ModulePass *llvm::createBreakpointPrinter(raw_ostream &out) {
77 return new BreakpointPrinter(out);